英华软件专用 购买QQ:505966338 LM-729 Service Manual Rev: A SERVICE MANUAL 17” LCD Monitor LM-729 THESE DOCUMENTS ARE FOR REPAIR SERVICE INFORMATION ONLY. EVERY REASONABLE EFFORT HAS BEEN MADE TO ENSURE THE ACCURACY OF THIS MANUAL; WE CANNOT GUARANTEE THE ACCURACY OF THIS INFORMATION AFTER THE DATE OF PUBLICATION AND DISCLAIMS RE LIABILITY FOR CHANGES, ERRORS OR OMISSIONS.
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英华软件专用 购买QQ:505966338 LM-729 Service Manual Rev: A Prepared: Shiwei Date: Jul-30-03 Page 2 of 61 ...
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英华软件专用 购买QQ:505966338 LM-729 Service Manual Rev: A Revision History Revision Date Page Items Modification First version release; Date:Jul-30-03 Page 3 of 61 ...
英华软件专用 购买QQ:505966338 LM-729 Service Manual Rev: A 1.MONITOR SPECIFICATIONS Driving system TFT Color LCD LCD Panel Size 43.2cm(17.0") Pixel pitch 0.264mm( H )x 0.264mm( V ) Viewable angle 90˚ (H) 90˚ (V) Response time (typ.) 25 ms Video Analog /Digital Input Sync.
英华软件专用 购买QQ:505966338 LM-729 Service Manual Rev: A 2. LCD MONITOR DESCRIPTION The LCD MONITOR will contain a main board, an inverter/power board, keypad board , Audio board and external power adapter which house the flat panel control logic, brightness control logic and DDC.
英华软件专用 购买QQ:505966338 LM-729 Service Manual Rev: A 3. OPERATING INSTRUCTIONS 3.1 GENERAL INSTRUCTIONS Press the power button to turn the monitor on or off. The other control buttons are located at front panel of the monitor. By changing these settings, the picture can be adjusted to your personal preferences.
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英华软件专用 购买QQ:505966338 LM-729 Service Manual Rev: A OSD Table: Description Main Main Sub Menu Adjust Reset Value Menu Item Menu Icon Item Menu Range Icon Luminance Contrast Contrast from Digital-register. 0-100 Recall Cool Contrast Value Brightness Backlight Adjustment 0-100 Recall Cool...
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英华软件专用 购买QQ:505966338 LM-729 Service Manual Rev: A Language English Set OSD display language to The Language will English. be set to English. Deutsch Set OSD display language to German. Français Set OSD display language to French. Español Set OSD display language to Spain.
英华软件专用 购买QQ:505966338 LM-729 Service Manual Rev: A 4.3 Power Supply Requirements 4.3.1 Input Requirements PARAMETER RANGE CONDITION Input AC Voltage 100 to 240VAC RMS Universal input full range Input Frequency 60Hz @ 100VAC to 50Hz @ 240VAC Input Current Less than 2.0 Amps RMS Input voltage 100 VAC RMS ;...
英华软件专用 购买QQ:505966338 LM-729 Service Manual Rev: A 4.4.4 Parameter guide line for CCFL Inverter INVERTER MAX BRINGTHNESS (Vadj:5.0v), LOAD=120K X4(ROOM TEMPERATURE 25 ITEM SYMBOL MIN. TYP. MAX. UNIT REMARK Input voltage 10.8 13.2 Input current 2250 2500 FOR 4 LOAD...
英华软件专用 购买QQ:505966338 LM-729 Service Manual Rev: A 5.3.2 Inverter/Power Board Inverter Block Diagram P a ra lle t-re s o n a n t V in B u c k C o n n e c to r in v e rte r...
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英华软件专用 购买QQ:505966338 LM-729 Service Manual Rev: A Remark: 1) MCU initialize. 2) Is the EEprom blank ? 3) Program the EEprom by default values. 4) Get the PWM value of brightness from EEprom. 5) Is the power key pressed ? 6) Clear all global flags.
英华软件专用 购买QQ:505966338 LM-729 Service Manual Rev: A 8.2 Trouble Shooting 8.2.1 Main Board 1.NO SCREEN APPEAR Measured CN11 pin5 = 12 V? Measured CN11 pin 9/10= 5V? Check Correspondent component. Is there any shortage or cold solder? Measured U8 pin 2= 3.3V? Measured U9 pin 2= 2.5V?
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英华软件专用 购买QQ:505966338 LM-729 Service Manual Rev: A 2.PANEL-POWER CIRCUIT Check the PPWR panel power relative circuit, check R203 should have response from 0V to 5V Q5, Q2(pin7,8) When we switch the power switch from on to off In normal operation, when LED =green, R203...
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英华软件专用 购买QQ:505966338 NG , no transition Measured DCLK(pin 15 or pin 16 from U4) DVS, DHS (pin 1,4 from U4 ) Is the waveform ok? DCLK around 48 MHZ , DVS=60.09Hz , DHS around 80 KHz ?(refer to input Replace GM5126 /2126 (U4) or signal=640x480@60 Hz 31k, and LED is replace MAINBOARD.
英华软件专用 购买QQ:505966338 LM-729 Service Manual Rev: A 8.2.2 Power/Inverter Board 1.) No power Repeating the start voltage Page 40 of 61 Free Datasheet Download http://www.Chinadz.Com http://www.Icver.Com...
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英华软件专用 购买QQ:505966338 LM-729 Service Manual Rev: A 2.) W / LED , No Backlight Check Q209/Q210/C213 or Q211/Q212/C214 Page 41 of 61 Free Datasheet Download http://www.Chinadz.Com http://www.Icver.Com...
英华软件专用 购买QQ:505966338 LM-729 Service Manual Rev: A 8.2.3 KeyPad Board OSD is unstable or not working Connect KeyPad Board Is KeyPad Board connecting normally ? Replace Button Switch Is Button Switch normally ? Replace KeyPad Board Is KeyPad Board Normally ? Check Main Board Page 42 of 61 ...
英华软件专用 购买QQ:505966338 LM-729 Service Manual Rev: A 9. White-Balance, Luminance adjustment Approximately 30 minutes should be allowed for warm up before proceeding white balance adjustment. Before started adjust white balance ,please setting the Chroma-7120 MEM. channel 1 to 6500 color, MEM. channel 2 to 7800 color, ( our 6500 parameter is x = 313 ±10, y = 329 ±10, Y = 200 ±10 cd/m...
英华软件专用 购买QQ:505966338 LM-729 Service Manual Rev: A 10. EDIT Content A. D-SUB Connector (Analog) Note: Byte 0C, 0D, 0E, 0F means Serial No. Byte 10, 11 means Manufacture Time. Byte 7F means checksum B. DVI Connector (Digital) Note: Byte 0C, 0D, 0E, 0F means Serial No. Byte 10, 11 means Manufacture Time. Byte 7F means checksum Page 44 of 61 ...